Zhengzhou Delong Chemical Co., Ltd. is the production base of plant growth regulators in China, which established in 2009, specializing in offering all kinds of plant protection products. We're mainly manufacturing and engaging in high quality plant growth regulators, including Gibberellic acid, IBA, 6-ba, CPPU, Prohexadione calcium and others, also we’re marketing insecticide, fungicide. herbicide and rodenticide, also we accept customized plant nutrition, organic fertilizer, lawn & garden care products.